* Use lemon: Rub your knees and elbows with used lemon pieces filled with half teaspoons of salt and sugar. Follow up by washing them off with lukewarm water. Lemon contains vitamin C, and citric acid is the best natural product for lightening skin. The granules of salt and sugar will exfoliate the skin and take off all the dead skin.

* Don’t neglect elbows and knees: Remember to wash them daily while bathing, using a good soap and loofah. Also, remember to exfoliate these areas once a week, for removing the deep skin impurities and dead cells that create an illusion of darkness.

* Papaya boost: Papaya is filled with a skin cleansing enzyme called papain and vitamin A and C that can aid you in getting rid of dark elbows and knees. Take a slice of papaya and mash it with curd then rub the paste to your skin. With regular application, the nutrients contained in papaya will lighten these problematic areas, while curd will help to turn it fair.

* Nourish with oils: Natural oils like olive, coconut and almond oil contain vitamin-E that provides moisture to dry and rough skin. Olive oil also contains anti-oxidants, known for repairing dark and damaged skin. Apply one of these oils to your elbows and knees before hitting the bed.